Home / 558,765.12-771,112.24-304,132.80

Finding the Fourth Proportional to 558,765.12, 771,112.24 and 304,132.80

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Solution

The fourth proportional to 558,765.12, 771,112.24 and 304,132.80 is: 419,712.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,765.12 : 771,112.24 = 304,132.80 : x
  2. Step 2: Convert to fraction form
    558,765.12/771,112.24 = 304,132.80/x
  3. Step 3: Cross multiply
    558,765.12x = 771,112.24 × 304,132.80
  4. Step 4: Simplify right side
    558,765.12x = 234,520,524,665.47
  5. Step 5: Solve for x
    x = 234,520,524,665.47/558,765.12
  6. Step 6: Final answer
    x = 419,712.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.